How Many People Are Named Costello?
55
people named Costello are alive in the United States today (estimate)
About 1 in 6,214,270 people in the US has this name
Based on 72 babies named Costello in Social Security records from 1931 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
#47,127
💎💎 Very Rare
Population Percentage
0.0000%
Of US population
Peak Year
1951
11 births
Trend
→
Stable (last 10 years)
⚧ Gender Distribution
Of the babies given the name Costello, 1.1% were girls and 98.9% were boys.
👥 Age Distribution
The average person named Costello alive today is about 38 years old, and 50% are under 30.
📈 Popularity Over Time
Costello first appears in the records in 1931 and was given most often in 1951, to 11 babies. In 2025, 6 babies got the name.
Babies given the name each year, 1931 to 2025
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